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I'm sticking to CI-4+ engine oil
Old 08-22-2009, 05:11 AM   #1 (permalink)
Ncostello
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Join Date: Aug 2002
Location: Indiana
Posts: 2,161
I'm sticking to CI-4+ engine oil

If you've read TDR issues...you'll know that the CJ-4 newer oils for DPF trucks cannot compare to the good additive packages of now scarce CI-4+ oils.

With that being said I'm switching to either John Deere Plus 50 or Cat DEO 15W40. Both are still CI-4+. Both are fine for OTR HD diesels and JD says diesel pickups specifically on their website. Dealers are close to me too. So availability is no worse. Its actually farther to Wal-mart than MacAllister CAT for me.

I used up my last Delo400 CI-4 and everything everywhere now is CJ-4. Using CJ-4 just isn't worth it in older diesels.

Anybody use CAT or JD oils?
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91.5 D250 LE
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Last edited by Ncostello; 08-22-2009 at 05:15 AM..
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